ob-gyne Flashcards
endometrial histologic features:
proliferative? early secretory? late secretory?
🔹proliferative: straight to slightly coiled glands; tubular glands - pseudostratified columnar; scattered mitoses
🔹 early: coiled; simple columnar; clear subnuclear vacuoles
🔹 late: serrated, dilated glands; short columnar cells
first sign of ovulation
subnuclear vacuoles and pseudostratification
days 21 to 24
“window of implantation”
primary cause of endometrial ischemia and tissue degeneration
resultant stasis
potent inducer of angiogenesis and vascular permeability factors; vasoconstriction of spiral arteries
PGF 2-alpha
enkephalinase activity is highest at what phase of menstruation
midluteal phase
greatest transverse diameter of the head
bitemporal diameter
8.0cm
plane that corresponds to the greatest circumference of the head
occipitofrontal
34.5 cms
plane that corresponds to the smallest circumference of the head
suboccipitobregmatic
32 cms
principal prostaglandin of endothelium
prostacyclin
cervical mucus during pregnancy is rich in?
🔹 Ig
🔹 cytokines
endocervical gland hyperplasia and hypersecretory appearance of the cervix
arias-stella reaction
average weight gain during pregnancy
12.5 kgs or 27.5 lbs
estimated additional energy demands during pregnancy
1st tri: 85 kcal/day
2nd tri: 285 kcal/day
3rd tri: 475 kcal/day
cervical stretching during dilatation; stripping of fetal membranes increase blood levels of prostaglandin F 2a metabolite
ferguson reflex